Crank twisted?
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Senior Member
Joined: Jun 2008
Posts: 660
Likes: 1
From: Corning NY
Car: 86' IROC
Engine: 388
Transmission: Built 700r4
Axle/Gears: 3.08 non-posi
Crank twisted?
Last night i blew a radiator hose and noticed that my crank seemed to wobble as the pully turned...is this a sign of twisted or bent crank?...the engine doesnt seem to make any out of the ordinary noise or vibration...should i be worried?....its maybe moving 1/8th to 1/4 inch
Joined: Aug 2006
Posts: 12,812
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From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Crank twisted?
this is when the motor is running or are you turning it by hand? i would doubt the crank is bent.
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Joined: Jul 2004
Posts: 10,763
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: Crank twisted?
No, I highly doubt it's a crank problem. You'd think it's armageddon if it was.
Sounds like your balancer or pulleys are loose.
Sounds like your balancer or pulleys are loose.
Thread Starter
Senior Member
Joined: Jun 2008
Posts: 660
Likes: 1
From: Corning NY
Car: 86' IROC
Engine: 388
Transmission: Built 700r4
Axle/Gears: 3.08 non-posi
Re: Crank twisted?
its when the motor is idling at 800 rpms...it moves but not a lot...i would think i would know when i change my oil this weekend..i figure there will be a lot of metal shavings...
what motor oil weight should i run?...im going synthetic but dont know what weight i was thinking like 5w-30 or 5w-20
what motor oil weight should i run?...im going synthetic but dont know what weight i was thinking like 5w-30 or 5w-20
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